List questions from vector-analysis

Published on 09 Apr 2026 - 22:26

97

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Vector Proof of Lower Bound of Sum of Squares of Cosines in a Triangle

Published on 10 May 2023 - 17:17

38

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Question about the way this derivative operation is being performed:

Published on 09 Apr 2026 - 15:23

68

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Identity tensor outer product representation

Published on 11 Apr 2026 - 18:48

25

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Find the constants $a,b,c$ such that the directional derivative is maximum on the direction of $\vec{u}$

Published on 25 Mar 2026 - 17:21

99

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Function $g$ has all directional derivatives at $(0,0)$

Published on 11 Apr 2026 - 23:27

172

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Fundamental questions about differential forms:

Published on 10 Apr 2026 - 1:47

108

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curvilinear coordinates - effects of choice of coordinate system for $\mathbf{r}$ on basis vectors

Published on 25 Mar 2026 - 14:25

14

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Gradient of sum with respect to one vector

Published on 03 Mar 2026 - 0:16

97

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Why are these tangent vectors?

Published on 17 May 2023 - 19:42

199

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Find the integral $\iint\limits_{S}x^2dy\wedge dz+y^2dz\wedge dx+z^2dx\wedge dy$

Published on 03 Apr 2026 - 1:49

44

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How do scalars like currrent or amplitude add vectorially and give correct results?

Published on 25 Mar 2026 - 20:13

14

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How to interpret the gradient of implicitly defined function like f(x, y, z) = 0?

Published on 03 Mar 2026 - 0:16

364

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Is the curve $t \mapsto t \sin \frac 1 t$ rectifiable?

Published on 26 Mar 2026 - 22:57

17

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lagrange's mean value for smooth paramtric curves

Published on 14 Mar 2026 - 9:01

List Question

Why the red equal sign holds？

Vector Proof of Lower Bound of Sum of Squares of Cosines in a Triangle

Question about the way this derivative operation is being performed:

Identity tensor outer product representation

Find the constants $a,b,c$ such that the directional derivative is maximum on the direction of $\vec{u}$

Function $g$ has all directional derivatives at $(0,0)$

Fundamental questions about differential forms:

curvilinear coordinates - effects of choice of coordinate system for $\mathbf{r}$ on basis vectors

Gradient of sum with respect to one vector

Why are these tangent vectors?

Find the integral $\iint\limits_{S}x^2dy\wedge dz+y^2dz\wedge dx+z^2dx\wedge dy$

How do scalars like currrent or amplitude add vectorially and give correct results?

How to interpret the gradient of implicitly defined function like f(x, y, z) = 0?

Is the curve $t \mapsto t \sin \frac 1 t$ rectifiable?

lagrange's mean value for smooth paramtric curves

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